2. In a small saucepan over medium heat, melt chocolate in milk and cream,
whisking until mixture is smooth. In a medium bowl, whisk egg with sugar and add
the hot mixture in a steady stream. Whisk in the vanilla. Stir in the panettone
cubes.

3. Raise oven temperature to 350 degrees. Transfer the mixture to a buttered,
9-by-5-inch loaf pan. Let stand 10 minutes for panettone to absorb the custard
mixture. Bake in oven about 30 minutes or until a knife inserted in the center
comes out clean. Serve warm.